Over the years, communities around the country have banned many classic works of literature. As part of the American Library Association’s annual Banned Books Week (Sept. 25-Oct. 2), libraries and bookstores are urging these same communities to stand up against censorship. In that spirit, here’s a list of 50 books that have been banned at one time or another somewhere in the U.S., followed by their year of publication and categorized by the reason they were banned.